Liquid dispensing apparatus



March 18, 1958 up. SCHOELZEL ETAL ,3

LIQUID DISPENSING APPARATUS Filed Nov. 25, 1956 2 Sheets-Sheet lINVENTORS #525587 0- SCHUELZEL JUSEP/l D- f/EA/DEES'OA/ H. D. SCHOELZELETAL 2,827,209 LIQUID DISPENSING APPARATUS March 18, 1958 2 Sheets-Sheet2 Filed Nov. 23, 1956 v INVENTORS #525587 0. 50/05125;

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mourn nisrnNsnto APPARATUS Elerhert D. Schoelzei and Joseph D.Henderson, San Antonio, Tex.

Application Novemher 23, 1956, fierial No. 623,893

2 (Iiaims. (Cl. 222-381) The present invention relates to apparatus fordispensing a liquid such as hairdressing liquid, perfume, or the Anobject of the present invention is to provide a liquid dispensingapparatus for dispensing a liquid such as hairdressing liquid, perfume,hand lotion, or other toilet liquid which lends itself to installationin public washrooms, trains, and other vehicles used by the travelingpublic, one which is sturdy in construction and simple in structure, oneeconomical to manufacture and assemble, and one highly effective inoperation.

These and other objects and advantages of the present invention will befully apparent from the following description when taken in connectionwith the annexed drawings, in which:

Figure l is a sectional view of the apparatus of the present inventionas seen from one side thereof;

Figure 2 is a sectional view taken on line 22 of Figure 1;

Figure 3 is a sectional view taken on line 33 of Figure 1;

Figure 4 is a sectional view taken on line 44 of Figure 1;

Figure 5 is a sectional view taken on line 55 of Figure 1; and

Figure 6 is a sectional view, on an enlarged scale, taken on line 6-6 ofFigure 5.

Referring in greater detail to the drawings in which like numeralsindicate like parts throughout the several views, the liquid dispensingapparatus of the present invention comprises an upright closed housing16 having therein a receptacle 11 for holding a supply of the liquid tobe dispensed.

A hollow piston rod 12 having a piston 13 on one end thereof isvertically positioned within the receptacle 11 with the piston 13adjacent to and spaced from the bottom 14 of the receptacle 11. Thepiston rod 12 has a portion adjacent the upper end thereof exteriorly ofand above the top of the receptacle 11.

A dispensing conduit 15 has one end connected in communication with theinterior of the hollow piston rod 12 and has its other end remote fromthe receptacle 11 and projecting outwardly of the housing beneath ashield 16 formed integrally with the front wall of the housing 10.

An upstanding support member 16 is positioned within the receptacle 11and has the upper end thereof exteriorly of and above the top of thereceptacle 11. A vertically disposed pump cylinder 17 having its lowerend open is carried by the lower end of the support member 16 formovement therewith and is positioned within the receptacle 11 so thatthe lower end of the pump cylinder 17 faces toward and is spaced abovethe bottom 14 of the receptacle 11. The pump cylinder 17 is mounted uponthe piston 13 for up and down movement responsive to the upward anddownward movement of the support member 16. i

ates Fatent ice A spring 18 is positioned between the upper face of thepiston 13 and the upper end of the pump cylinder 17 for urging the pumpcylinder 17 to its down position as shown in full lines in Figure 1.

Means is provided for effecting the upward and downward movement of thepump cylinder 17 and the support member 16 and comprises a horizontallydisposed rocker arm 13 mounted upon the horizontally disposed long legof a bracket 21 which is attached by its short leg to the rear wall ofthe housing 10. The mounting of the rocker arm 19 includes a shaft 22fixedly secured thereto and having collars 23 and 24 on each side of thelong leg of the bracket 21 for supporting the rocker arm 19 for rockingmovement about the shaft 22 as a horizontal axis.

The wing nut 25 is threadedly engage-d upon the upper end portion of thesupport member 16 and connects the upper end of the support member 16 tothe rocker arm 19 so as to efiect the upward movement of the supportmember 16 responsive to the tilting movement from the full line positionto the dotted line position in Figure l.

The shaft 22 has a downwardly extending portion 26 from which projectsan extension 27.

A coin slot mechanism of conventional construction is indicated by thereference numeral 28 and includes a plunger 29 disposed horizontally andhaving a finger hook 31 on the end of the plunger 29 which is exteriorlyof the housing 10. The other end of the plunger 29 carries an L-shapedactuating element 32 having its long leg extending horizontally andlongitudinally of the plunger 29 and having its short leg 33 projectingupwardly and engageable with the lower end of the extension 27 uponexecution of forward movement of the plunger 29 within the coin slotmechanism 28.

Latch means is provided for holding the extension 27 in the position inwhich it is moved by engagement with the short leg 33 of the element 32upon execution of movement of the plunger 29 forwardly. Specificallythis latch means comprises an arm 34 having one end mounted upon abracket 35 carried by the back wall of the housing 13 for movement fromthe full line position to the dotted line position shown in Figure 1.The free end of the arm 34 rests upon the upper end of the short leg 33of the element 32 and is lowered to the dotted line position by theforward movement of the plunger 29 carrying the element 32 forwardly.The extension 27 has a portion underlying the arm 34 and receivable inany one of the notches 36 in the arm 34. At the limit of its forwardmovement, the plunger 29 will move the extension 27 to a rearwardlyswung position with respect to the housing 10 and the extension 27 willbe held in that position by the one notch 36 on the arm 34 into whichthe extension has been releasably secured. Upon movement of the plunger29 outwardly of the housing 10, or rearwardly, the short leg 33 of theelement 32 will serve to raise the arm 34, releasing the extension 27from the one notch 36 and permitting the extension 27 to return to itsoriginal position and permitting the support member 16 to be loweredunder the urging of the spring 18.

The coin slot mechanism 28 contains within a box 37 a conventionalcoin-rejecting and passing mechanism which permits the plunger 29 to bemoved forwardly when the proper coin has been inserted within theplunger 29. This mechanism is not further described or illustrated asnot being a part of the present invention.

Check valve means is provided in the lower open end of the cylinder 17and includes a ball 38 positioned within the cylinder 17 and seatable inthe open end which is positioned adjacent to and spaced above the bottom14 of the receptacle 11. The ball38 is movable inwardly of the openendof thecylinder 17 in response to downward movement of the. cylinder 17to fill the cylinder with a charge of the liquid contained in thereceptacle 11 and will move to close the open end of the cylinder 17.responsive to. the. execution of the upward movement of the cylinder. 17and the support member 16 to retain. the charge of liquid within thecylinder 17 and permit. the piston 13 to force the charge of liquidupwardly into the hollow piston. rod 12 Meansis provided on the end ofthe rocker arm 19. remote from its point of connection with the support.member 16. for limiting the downward movement of the support member 1 6.and the attached cylinder 17. Specifi:

cally this means comprises a bolt member 39 secured by'lock' nuts 41and42 to. the rocker arm 19, the upper end of the bolt 39,-bearing againstan abutment plate 43 provided on the underside of thetop of the housing10, Byadjustment of the bolt- 39. relative to the rocker arm 19 thedistance of travel of the support member 16 and; the. resultantmovement'- Qfthe cylinder 17 permits the amount of liquid being.dispensed to be accurately and efliciently. controlled.

Means is provided stopping the mechanism of the dispensing apparatusfrom working upon exhaustion of the supply of liquid. within the.receptaclell and comprises a. float element 44. carried; on the lowerend Of a, rod 45 which is jo-urnaled in brackets 46and 47 projectingfrom. one. si e, tthe piston. rod 12.. The pper en portion of; the rod45: is bent downwardly S 413. nd: is. slidably supported in otherbrackets 49,; The lowe nd of the downwardly. bent portion 43 of the rod45.; is receivable within a hole provided in the long leg of the lement32- the e y ocki g th P ng .9. ns

, mov ment i o. e ho s ng .0 wh n the floate em nt 4.

is at t limit oii s downward. mo eme t position. n

adj st g crew 51 pe mi s. the j tm t o he. flo t e eme relat v to tesupp t ng rod Referring to Fig. 6, it will be seen that the receptacle11 s prov ed th a pver o e w ich extend a pla e membe h vi a e i a l exend n a e bo e j o he ear l -c he. ous J A n pp e 53 r ound t e ppe d oe, o l w pist r 12 and te s a m a s, o secu ment o t p s o to the p e .2and to h. ..Q' l i 5-. he

n pp e 3 1 a ape ed nn ur ac n ch e t a b l 5 rm ng an ther 'q e sva e dp ra le, o pe mi liqui to flow upwardly to the nd i 5. to moved t owot'qu d dsw war v' n e. Pi QQ rod 12.

I use. the ecep cle; 1.1 s e si cemen e rom e. over t fi lin ith t e iqd. o e spen e nd.

ea l r r aqed- U o nse t s ir int the i s of th P u e 29 p un r- 2 maybe pushed forwardly into the housing to to effect the tilting mo e t 'tr c e arm 19 n he ub equ n r s n f e c l n h c um s a a e oi he liqilidto be d p n e n d nd 01111. o th d p nsin o dui 5 n hehaad o he us hliquid. be n indicated by droplets 55 in Figure 1 The amount of theliquid being dispensed is easily con; trollable by the adjustment oi thebolt 32 which limits e t t n m ment of he o k a m 19'- a The.dispensing. apparatus according to the present invention will be foundto be useful for installation in public places such as washrooms onpassenger carrying vehicles and in hotels and the like where it isdesirable to have a dispensing apparatus for the sale of andapplicareceptacle and having a portion adjacent the upper end thereofexteriorly of and above the top of said receptacle, a dispensing conduithaving one end thereof connected in communication with the interior ofsaid piston rod and having the other end remote from said receptacle, anupstanding support member positioned within said receptacle and havingthe upper end thereof exteriorly of and above the top of said receptacleand having the lower end positioned abovev the bottom ofsaid receptacleand connected to said receptacle for up and down movement, a verticallydisposed pump cylinder having the lower end open carried by the lowerend of said support memberfor movement therewith. and positioned so thatthe lower end of said cylinder faces toward and is spaced above thebottom of the. receptacle and mounted on the piston for sliding up anddown movement in response to movement of said support member, checkvalve means normally closing the open lower end of said cylinder andoperable to move to the open position responsive to the execution of thedown. movement of said support member. to fill the cylinder with acharge of said liquid and to. move to the closed position responsive tothe execution of the up. movement of; said support member to retain thecharge of liquid within said cylinder, said piston upon. execution ofthe up movement of the cylinder pumping said liquid charge into thelower end of said piston rod, a horizontally disposed, rocker armmounted in said'recep:

tacle for rocking movement about a horizontal axis and 1 having one endconnected to the upper end of saidsupport member for effecting the upmovement of the latter, means on the. other end of said rocker armforlimiting he. own mo em t o aid supp r b a o on said receptacle forforward and backward movement, and an upright extension dependinglycarried by said c e a m a d h v n its l e nd c an eab y s one end ofsaid plunger and operable upon execution 0t forward movement of thelatter to etfect the move ment of said rocker arm to the position inwhich said support member is in the up movement position.

2. A liquid dispensing apparatus comprising a receptacle adapted: tocontain a body of liquid to be dispensed, a hollow piston rod having apiston on one end thereof vertically positioned within said receptaclewith said piston adjacent to and spaced from the bottom of saidreceptacle nd havin a a ng. adja nt he nn e d e o e cr b and a o h ten oai rec a le a, i raisins du t ha in 9 nd th re 'osas ed communicationwith the interior of said piston rod and having the. other end remotefrom said receptacle, an

upstanding support member positioned within said recep-z tacle andhaving the upperend thereof exteriorly of and above the top of saidreceptacle and having thelower end positioned above the bottom of saidreceptacle and connected to said receptacle for up and down movement, avertically disposed pump. cylinder having the lower end open carried bythe lower end of said support member for movement therewith'andpositioned so that the lower end of said cylinder faces toward and isspaced above the bottom of said receptacle and mounted on said pistonfor sliding up and down movement in response to the move.- ment ofsaidsupport member, spring means operatively connected to said cylinderurging said cylinder .to the down movement position, check valve meansnormally closing the lower open end of said cylinder and operable.

to move to the open position responsive to the. execution of said downmovement of said support member to fill theo he an niq t snt a d e n e amr aidl qu charge into the lower end of the piston rod, a horiz ontallydisposed rocker arm mounted in said receptacle for rocking movement upona horizontal axis and having one end connected to the upper end of saidsupport member for efiecting the up movement of the latter, means on theother end of said rocker arm for limiting the down movement of saidsupport member, a horizontally disposed piun er having one end Withinand adjacent the upper end of said receptacle and having the other endexten'oriy of said receptacle and connected to said receptacle forforward and backward movement, an upright extension dependingly carriedby said rocker arm and having its lower end engageable by said one endof said plunger and operable upon execution of forward movement of thelatter to effect the movement of said rocker arm to the position inwhich said support member is in the up movement position, and latchmeans engaging said extension for holding the latter in the position towhich it is moved upon execution of forward movement of said plunger andoperable to release said extension upon execution of backward movementof said plunger.

References Cited in the file of this patent UNITED STATES PATENTS FranceDec. 12, 1951

